<h2>
Hello!</h2>
The answer is:
The second option,
![SU=13.02=13](https://tex.z-dn.net/?f=SU%3D13.02%3D13)
<h2>
Why?</h2>
We are working with a right triangle, it means that we can use the following trigonometric property:
![Tan(\alpha)=\frac{Opposite}{Adjacent}](https://tex.z-dn.net/?f=Tan%28%5Calpha%29%3D%5Cfrac%7BOpposite%7D%7BAdjacent%7D)
Which applied to our problem, will be:
![Tan(\alpha)=\frac{TU}{SU}](https://tex.z-dn.net/?f=Tan%28%5Calpha%29%3D%5Cfrac%7BTU%7D%7BSU%7D)
We are given:
m∠S, equal to 21°
The side TU (opposite) equal to 5 units.
So, substituting and calculating we have:
![SU=\frac{TU}{Tan(\alpha)}](https://tex.z-dn.net/?f=SU%3D%5Cfrac%7BTU%7D%7BTan%28%5Calpha%29%7D)
![SU=\frac{5units}{Tan(21\°)}](https://tex.z-dn.net/?f=SU%3D%5Cfrac%7B5units%7D%7BTan%2821%5C%C2%B0%29%7D)
![SU=13.02=13](https://tex.z-dn.net/?f=SU%3D13.02%3D13)
Hence, the answer is the second option
![SU=13.02=13](https://tex.z-dn.net/?f=SU%3D13.02%3D13)
Have a nice day!
Length = 34 cm
Width= 9 cm
Step-by-step explanation:
Let the width of the rectangle to be.........w
Length is 7 more than three times the width..........3w+7
Perimeter = 86 cm
Perimeter of a rectangle = 2(l+w)
Perimeter of the rectangle = 2 (w + 3w +7)
= 2w +6w + 14
86= 8w +14
86-14 =8w
72=8w
72/8 =8/8w
9=w
Width= 9 cm
Length = 3*9 + 7= 27+7 = 34 cm
Learn More
Perimeter of a rectangle :brainly.com/question/13220601
Keywords: rectangle,perimeter,length, equation, dimensions
#LearnwithBrainly
Area of one piece is 26.24cm ^2 or just 13.12cm
Answer: A is 5 B is 6 C is 3
D is 7
Step-by-step explanation: I hope u get ur answer- and if I’m wrong plz tell me I took this lesson 2 days ago-
Answer:
for A plug in those numbers on the right and on the left start with 1 and move up(for example 1,2,3,4,5...)
For b the answer is 2.5x²−4.5x+1.
Step-by-step explanation: